Nissan Maxima Service and Repair Manual: The oil pressure warning lamp does not turn on
The oil pressure warning lamp stays off when the ignition switch is turned ON.
1.CHECK OIL PRESSURE WARNING LAMP
Perform IPDM E/R auto active test. Refer to PCS-11, "Diagnosis Description".
2.CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to MWI-42, "Diagnosis Procedure".
3.CHECK OIL PRESSURE SWITCH UNIT
Perform a unit check for the oil pressure switch. Refer to MWI-42, "Component Inspection".